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With information technology developing rapidly, variety and quantity of image data is increasing fast. How to retrieve desired images among massive images storage is getting to be an urgent problem. In this paper, we established a Distributed Image Retrieval System (DIRS), in which images are retrieved in a content-based way, and the retrieval among massive… (More)

Unstructured database serves as a new database targeted mainly at unstructured data management, which addresses the limitations of relational database. In this paper, an unstructured database management system named Advanced Unstructured Data Repository (AUDR) is introduced. AUDR is designed to manage massive and various types of unstructured data including… (More)

This paper presents the participation of the BUAA AUDR group at ImageCLEF 2012 at the Medical Image classification and Retrieval task. We performed two subtasks: modality classification and ad-hoc image-based retrieval. It was our first time to select modality classification task and we concentrated on mono-modal visual-based image classifier. We used… (More)